Guideline B.2.3: Assist authors with managing alternative content for non-text content

Guideline B.2.3: Assist authors with managing alternative content for non-text content ()
Guideline B.2.3: Assist authors with managing alternative content for non-text content. [Implementing B.2.3]
Rationale: Improperly generated alternative content can create web content accessibility problems (WCAG) and interfere with accessibility checking.
Note: This guideline only applies when non-text content is specified by authors (e.g. inserting an image). When non-text content is automatically added by the authoring tool, see Guideline B.1.1.

B.2.3.1 Alternative Content is Editable (WCAG): If the authoring tool provides functionality for adding non-text content, then authors are able to modify programmatically associated text alternatives for non-text content. (Level A to meet WCAG 2.0 Level A success criteria; Level AA to meet WCAG 2.0 Level A and AA success criteria; Level AAA to meet all WCAG 2.0 success criteria)
Note: An exception can be made when the non-text content is known to be decoration, formatting, invisible or a CAPTCHA.
Implementing B.2.3.1
B.2.3.2 Automating Repair of Text Alternatives: The authoring tool does not attempt to repair text alternatives for non-text content or the following are all true: (Level A)
(a) No Generic or Irrelevant Strings: Generic strings (e.g. "image") and irrelevant strings (e.g. the file name, file format) are not used as text alternatives; and
(b) In-Session Repairs: If the repair attempt occurs during an authoring session, authors have the opportunity to accept, modify, or reject the repair attempt prior to insertion of the text alternative into the content; and
(c) Out-of-Session Repairs: If the repair attempt occurs after an authoring session has ended, the repaired text alternatives are indicated during subsequent authoring sessions (if any) and authors have the opportunity to accept, modify, or reject the repair strings prior to insertion in the content.
Implementing B.2.3.2
B.2.3.3 Save for Reuse: If the authoring tool provides the functionality for adding non-text content, when authors enter programmatically associated text alternatives for non-text content, then both of the following are true: (Level AAA)
(a) Save and Suggest: The text alternatives are automatically saved and suggested by the authoring tool, if the same non-text content is reused; and
(b) Edit Option: The author has the option to edit or delete the saved text alternatives.
Implementing B.2.3.3